Horse-power recorder.



G. N.I'PETESGH. HORSE POWER RECORDER.

APPLLUATIOI FILED mln 9,1913. y

Patented Nov. 4, 1913.

4 SHEETS-SHBET 1.

' G. N. PETESGH. HORSE PowEE RECORDER;

APPLICATION FILED .TUHH 9, 1913.

Patented Nov, 4, 1913.

4 SHEETS-SHEET 2.

.- l" n @En '17,1111

Msw C. N. PBTESGH.

RoRsR PowRR RECORDER. APPLICATION IILBD JUNE 9, 1913'.

' 1,077,637. Patented Nov.4,1913.

4 SHEETS-SHEET 3.

C. N.l PETBSCH.

' HORSE PUWBB RECORDER.

APPLIUATION FILED JUNE s, 1913.

1,077,637. Patented Nov.4, 1913.

4 SHEETS-SHEET 4.

Y UNITED STATES APATENT OFFICE.

CHARLES N. PETESCH, 0F CHICAGO, ILLINOIS.

HORSE-POWER RECORDER.

To all whom z't may concern:

Be it known that I, CHARLES N. PETEsoH, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new. and useful Improvement in Horse- Power Recorders, of which the following is a specification.

My invention relates to an improvement in the class of devices used as attachments on engines for recording the horse-power by tracing it on a suitable dial with a stylus connected with the engine-governor to be actuated thereby.

In the accompanying drawings, Figure l is a broken view in elevation of an engine of the Corliss type showing my improved device attached thereto; Fig. 2 is an enlarged view showing the recorder in front elevation; Fig. 3 shows the same by a broken view in rear elevation; Fig. 4 is an enlarged broken view in sectional elevation of the device, the section being taken on line 4, Fig. 2; Fig. a is an enlarged section on line 5, Fig. 2; Fig. 6 is a section on. line 6, Fig. 4; Fig. 7 is a section on line 7, Fig. 6, and Fig. 8 is a section on line 8, Fig. 7.

A circular clock-casing 9, shown to be provided with a glass-covered door 10, hinged at 11, contains the works of a clock, only the hour-hand arbor 12 of whichis shown carrying-a lower d isk 13 (Fig.- 4) and having pinned to its outer end a sleeve 14 about which seats a thimble 15 provided about its inner end with a disk 16 and fastened to the sleeve by a thumb-screw 17. A circular plate 18, preferably of `liberboard, surrounds the arbor at the base of the sleeve 14 and forms a backing for a dial 19, preferably of paper; and the circular plate and clock-facing dial are clamped be tween the disks 13 and 16 to rotate `with the arbor.L The disk may be marked with a plurality of'uniformly-spaced concentric circles, as shown in Fig. 2, and is numbered about ythe outermost circle from 1 to 12 in two successive series to divide'the hours from noon and from midnight, the numbers being uniformly spaced apart.` A line, which is non- Specification o! Letter-s Patent. Application mea June s, 1913. serial No. 772,669. l

1 Patentedivov.4,19 13.

'is suiiicient. These numbers (from 0 to 6) denote, each, one-'hundred horse-power.

On the back'of the casing 9, where .clockwindlng arbors are shown to be provided at 20 and 21 (Fig. 3), is rigidly secured to extend diametri'cally across it, a rectangular bar 22 forming partof a bracket device and containing a rear elongated slot 23, the bar expanding at-'its forward end into a rectangular bracket-plate 24 from the lower inner corner of which depends an ear 25 having rigidly fastened to it a sustainingpost 26. The bracket contains a vlower elongated guide-slot 27 alining with the slot 23 and extending some distance into the bar 22, and, parallel therewith, a shorter guide-"slot 28; and cent-rally on the forward end of the back of the bracket-plate is provided a guideloop 29. Thebar 22 forms a guide for the movement of the casing 9, as and for the purpose hereinafter described, by bei conlined between a correspondingly-s aped and having a' guide-lug shown on its back,

Working in the slotl 28. The strips 30 and 31 are rigidly secured together and to the back of the clock-casing by bolts 33 passing through them and through guide-blocks 33, 33y reciprocably confined in the slots 23 and 27.

A rod 34, shown hollow and of rectangular cross-section, works through an opening 35 in a part of the sheet-metal casing somewhat in advance of the plane of jthe dial, where it is shown to be reinforced across its periphery by a relatively-heavy metal strip 36 fastened in place by screws. On the inner end of this rod is carried a stylus-device 37 (Figs. 6, 7 and 8) for marking the face of the dial 19. This device is on a stem 38 inysertible into the inner end of the rod 34 and sleeve 43 (Fig. 8) having a lug 44 extend# ing from it through the slot, and a ainst which a follower-finger 45 bears. T he nger 45 is pivoted at one end on the bearing-plate 39, .near one end of the latter, the pivot-pin 46, which carries the finger, being ]ournaled in the bearing-plate and carrying, at the side thereof opposite that on which the follower-finger extends, a yoke 47, in the slot of which works an adjusting-screw 48 for a link 48 having one end of a spiral sprmg 49 connected with it and passing at its op posite end into a ysleeve 50 on a clip 51 secured to the plate 39 and having a slotted end lat 52. A thumb-screw bolt 53 works in the slot 52 and has the spring 49 connected with it for tensioning the spring, by moving and setting the bolt in the slot. to regulate the pressure of the follower-finger against the pencil-sleeve lug 44 and thus re late the ressure of the pencil against the ial.

Tiie rod 34 works guidingly at its forward end through the upper end of a po-st 54 rig,- idly extending from the face of the bracketplate 24 at the outer end of the slot 27, and it also works through a guide loop 55 extending from a cross-head 56 secured on the upper end of a post 57 rigidly projecting fromthe face of the bracket-plate near its lower edge and adjacent to the slot 27. The rod carries, to reciprocate with it, at a point between the post 54 and guide-loop 55, an arm 58, through which, near its outer end, the rod passes and is secured thereto by a set-screw 58 working against it in the outer end of the linger. The arm carries on its end at the slot 27 an index-finger 59 formed of a pair of rectangular plates fastened together and to the end of the arm 58 to embrace the opposite Asides of the slot and reciprocate along it, the front plate, or member of the index-finger, which forms the index-linger proper, moving along the adjacent edge of a scale-plate 60 secured to the face ofthe bracket-plate 24 between its slots 27 and 23, and marked olf with transverse lines equally spaced apart, denoting hundred horse-powers, with 'intermediate uniformlyspaced short lines denoting twenty-live horse-powers. The hundred horse-power lines on the plate 60, between which six spaces are shown, should be, at least Yapproximately, twice the distance apart of the spacings between the horse-power indicating numbers along the non-radial lines on the dial. lever 61, fulcrumed between its ends at 62 (Fig. 3) on the back of the bracket 24, y, has a link-connection 63 at its lower end with the rear plate of the indexfinger 59, a link-connection 64 midway between its ends with a rigid arm 65 extending on the tongue transversely thereof, and a link-connection 66 at its upper end with an operating-lever 67 fulcru'med at its lower end, at 68, to the back of the bracket-plate. U To attach my improved device in proper relation to the engine illustrated in Fig. 1, a bracket 69 is shown on an end of the engine-` frame, into which the sustaining-post 26 is screwed. The 'operating-lever 67 is connected by a link 70 with a rod 71 extend from a boss 72 on an oscillatory shaft 73 aving the ordinary connections, as shown, with the governor and other parts of the Corliss type of engine illustrated. As these connections and their manner of operation are well-known to those skilled in the art, and form no part of my present invention, explanation thereof herein would be superfluous.

In applying my limproved device to its operative position, the parts are so adjusted as to remain stationary with the encil at zero on the dial and the indexnger at zero on the scale 60 until the engine is loaded. Then the osclllations of the rod 71 actuate the lever 67 to move the rod 34 and thus actuate the pencil against the dial and the index-finger along the outer relativel magnified scale. The works of the cloc revolve the dial with the hour-hand arbor, and the movements of the rod 34 with the variations in the load on the engine, cause the pencll to trace these variations, to indicate the horse-power, on the dial, which shows the time of night and day to which the tracing applies. The non-radial lines are so arranged correspondingly on the dial as to cause each, when it comes into line with the stylus 41, to extend parallel with the path of movement of the latter, thereby more accurately to indicate the horse-power on the dial. Each longitudinal movement of the rod 34 moves the stylus and the indexfinger 59 correspondingly; but by the linkconnection 66 of the operating lever with the one end of thelever 61 and of the connection of the opposite end of the lastnamed lever with the index-finger 59, the latter is moved the length of the full throw of that lever, while the link-connection 64 of the tongue 32 bein with the lever 61 midway between its en s, the movement of the casing is only one-half the extent of that of the index-finger. The readings on the scale 60 being thus twice as large as the Acomparatively diminutive tracings on the i be limited thereto; my intention being in the following claims to claim protection upon all the novelty there may be in my inventionas broadly as the state of the art will permit. ,n

What I claim as new and desire to secure by Letters Patent is:

1. In a horse-power recorder, the combination of a clock having a rotatable horsepower indicating dial-face, a bracket-device on which the clock is reciprocably sup- 2. In a horse-power recorder, the combi-- nation of a clock provided with a rotatable dial-face having non-radial lines thereon, with horse-power denoting characters spaced along one or more of said lines, a bracketdevice on which the clock is reciprocablysupported, a rod reciprocably supported on the bracket-device to work at one end across said face, a stylus-device on said end of the rod 'having the stylus thereon movable, by

the movement of said rod, in a path parallel. with the :non-radial line brought coincident` therewith in the rotation of the dial-face, a scale on the bracket-device, an index-finger connected with the'reciprocating rod to cooperate with said scale, an operating-lever, and lever and link connections of the ,operating-lever with said linger and clock for `moving them together, with a relativelygreater movement of said linger along the scale.

-3. In ka horse-power recorder, the combination of a clock having a rotatable horsepower indicating dial-face, a slotted bracketdevice having a bar on which the clock is supported to be reciprocated, a rod reciprocably supported on' the bracket-device to work at one end across said face,'a stylusdevice on said end of the rod, a scale extending along a slot in the bracket-device, an index-finger reciprocably confined in said slot and connected with the reciprocating rod to move therewith, an operating-lever, and lever and link connections of the operatinglever with said finger 'and clock for moving them together, with a relativelygreater movement of said iinger'along the scale.

4. In a horse-power recorder, the combination of a clock having a rotatable horsepower indicating dial-face, 'a bracket-plate having a slotted bar extending from it across the clock-base, a strip extending along said bar, bolted to said base through the barslots and having a tongue extending guidedly` along said plate, a rod reeiprocably supported on said plate to work at one end across said face, a stylus-device on said end of the rod, a scale on the bracket-device, an index-linger connected with the reciprocating rod to coperate with said scale, an operating lever, and lever and link connections of the operating lever with said Afinger and tongue for moving the inger'and clock together, with a relatively-greater movement of said finger along the scale.

` 5. In a horse-power recorder, the combination of a clock having a rotatable horsepower indicating dial-face, a slotted bracketdevice, by which the recorder is supported in operative position, and having a plate with a slotted bar extending from it across the clock-base, a pair of strips embracing saidbar and bolted through its slots to said base, the outermost strip having an olf-set tongue guided along a slot in said plate, 4posts extending from the face of said plate, a rod reciprocably 'supported by said posts to work at one end across the dial-face, a stylus-device on said end of the rod, a scale extending along a second slot in said plate, an arm on said rod, an index-linger on said arm reciprocably confined in said second slot, an operating-lever fulcrumed at one end on said plate, and a lever ulcrumed between its ends on said plate and linked at its opposite ends respectively1 tosaid operatinglever and the index-finger and between lts ends to said tongue, for the purpose set forth. f

CHARLES N. PETESCH.

In presence of- L. Husum, 'A. FISCHER. 

